engine: fix UnicodeEncodeError in brain_search on Windows

engine/hooks/daily-reflection.py

@@ -17,7 +17,7 @@
     sys.exit(0)
 
 sessions = []
-for line in index_file.read_text().splitlines():
+for line in index_file.read_text(encoding="utf-8").splitlines():
     try:
         sessions.append(json.loads(line))
     except Exception:
@@ -30,7 +30,7 @@
     tp = s.get("transcript_path")
     if tp and Path(tp).exists():
         try:
-            transcripts.append(Path(tp).read_text()[:50000])
+            transcripts.append(Path(tp).read_text(encoding="utf-8")[:50000])
         except Exception:
             pass
 
@@ -69,5 +69,5 @@
         check=False,
     )
 except Exception as e:
-    (LOGS / "daily-reflection-errors.log").open("a").write(f"{time.strftime(chr(37)+chr(70)+chr(84)+chr(37)+chr(84))} {e}" + chr(10))
+    (LOGS / "daily-reflection-errors.log").open("a", encoding="utf-8").write(f"{time.strftime(chr(37)+chr(70)+chr(84)+chr(37)+chr(84))} {e}" + chr(10))
 sys.exit(0)

engine/hooks/session-indexer.py

@@ -24,6 +24,6 @@
     "cwd": payload.get("cwd") or os.getcwd(),
     "transcript_path": payload.get("transcript_path"),
 }
-with (log_dir / f"sessions-{day}.jsonl").open("a") as f:
+with (log_dir / f"sessions-{day}.jsonl").open("a", encoding="utf-8") as f:
     f.write(json.dumps(entry) + chr(10))
 sys.exit(0)

engine/hooks/session-logger.py

@@ -23,6 +23,6 @@
     "cwd": payload.get("cwd") or os.getcwd(),
     "transcript_path": payload.get("transcript_path"),
 }
-with (log_dir / "sessions.log").open("a") as f:
+with (log_dir / "sessions.log").open("a", encoding="utf-8") as f:
     f.write(json.dumps(entry) + chr(10))
 sys.exit(0)

engine/hooks/session-recap.py

@@ -68,7 +68,7 @@ def parse_transcript(path):
     if not path or not Path(path).exists():
         return stats
 
-    with open(path, "r") as f:
+    with open(path, "r", encoding="utf-8") as f:
         for line in f:
             try:
                 d = json.loads(line)
@@ -206,17 +206,17 @@ def ensure_journal(day):
     f = JOURNAL_DIR / f"{day}.md"
     if not f.exists():
         JOURNAL_DIR.mkdir(parents=True, exist_ok=True)
-        f.write_text(f"# {day} — Daily\n\n## 📊 Claude Sessions\n\n")
-    elif "## 📊 Claude Sessions" not in f.read_text():
-        with f.open("a") as fh:
+        f.write_text(f"# {day} — Daily\n\n## 📊 Claude Sessions\n\n", encoding="utf-8")
+    elif "## 📊 Claude Sessions" not in f.read_text(encoding="utf-8"):
+        with f.open("a", encoding="utf-8") as fh:
             fh.write("\n## 📊 Claude Sessions\n\n")
     return f
 
 
 def upsert_session(journal, session_id, entry):
     """Replace existing block for this sid (or append). True if changed."""
     sid_short = session_id[:8]
-    txt = journal.read_text()
+    txt = journal.read_text(encoding="utf-8")
     # Match existing block: header line + nested "  - ..." continuation lines
     pattern = re.compile(
         rf"^- \*\*[^\n]+sid:`{re.escape(sid_short)}`[^\n]*\n(?:  - [^\n]+\n?)*",
@@ -228,7 +228,7 @@ def upsert_session(journal, session_id, entry):
         new_txt = new_txt.rstrip() + "\n\n## 📊 Claude Sessions\n\n"
     new_txt = new_txt.rstrip("\n") + "\n" + entry + "\n"
     if new_txt != txt:
-        journal.write_text(new_txt)
+        journal.write_text(new_txt, encoding="utf-8")
         return True
     return False
 
@@ -276,7 +276,7 @@ def main():
         # Log the error but never break the Stop hook
         err_log = Path.home() / ".claude" / "logs" / "session-recap-errors.log"
         try:
-            err_log.open("a").write(f"{time.strftime('%FT%T')} {type(e).__name__}: {e}\n")
+            err_log.open("a", encoding="utf-8").write(f"{time.strftime('%FT%T')} {type(e).__name__}: {e}\n")
         except Exception:
             pass
         sys.exit(0)

engine/search/brain_search.py

@@ -23,6 +23,13 @@
 import unicodedata
 from pathlib import Path
 
+# Windows consoles default stdout/stderr to the system codepage (e.g. cp1252),
+# which can't encode arrows/em-dashes/accents found in vault snippets and
+# crashes with UnicodeEncodeError. Force UTF-8 so query output never crashes.
+for _stream in (sys.stdout, sys.stderr):
+    if hasattr(_stream, "reconfigure"):
+        _stream.reconfigure(encoding="utf-8")
+
 BRAIN = Path(os.environ.get("BRAIN_DIR") or (Path.home() / "Documents" / "Brain"))
 INDEX = Path(os.environ.get("BRAIN_SEARCH_INDEX") or (Path.home() / ".brain-search" / "index.json"))
 K1, B = 1.5, 0.75

install.ps1

@@ -119,7 +119,12 @@ if ($cur -match [regex]::Escape($mark)) {
 Say "Task Scheduler (reindex 04:00 + reflection 12:00/23:00)"
 function Register-BrainTask($name, $argument, $triggers) {
     $action = New-ScheduledTaskAction -Execute $Py -Argument $argument
-    Register-ScheduledTask -TaskName $name -Action $action -Trigger $triggers -Force -User $env:USERNAME | Out-Null
+    # LogonType S4U : tourne meme si personne n'est connecte/deverrouille (pas de mot de passe stocke).
+    # Le defaut de Register-ScheduledTask -User est LogonType Interactive, qui exige une session active -
+    # observe en pratique : echec (0x800710E0, "operateur/administrateur a refuse la requete") au declenchement
+    # de nuit/verrouille, succes seulement quand relance manuellement en session active.
+    $principal = New-ScheduledTaskPrincipal -UserId $env:USERNAME -LogonType S4U -RunLevel Limited
+    Register-ScheduledTask -TaskName $name -Action $action -Trigger $triggers -Principal $principal -Force | Out-Null
     Ok "tache: $name"
 }
 try {